Section 3.1 class notes_0

# Section 3.1 class notes_0 - Section 3.1 Relations and...

This preview shows pages 1–2. Sign up to view the full content.

Section 3.1 Relations and Functions Objective 1: Understanding the Definitions of Relations and Functions Definition Relation A relation is a correspondence between two sets A and B such that each element of set A corresponds to one or more elements of set B. Set A is called the domain of the relation and set B is called the range of the relation. Definition Function A function is a relation such that for each element in the domain, there corresponds exactly one and only one element in the range. In other words, a function is a well-defined relation. The elements of the domain and range are typically listed in ascending order when using set notation. Objective 2: Determine if Equations Represent Functions To determine if an equation represents a function, we must show that for any value of in the domain, there is exactly one corresponding value in the range. Objective 3: Using Function Notation; Evaluating Functions When an equation is explicitly solved for y , we say that “ y is a function of

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 09/08/2011 for the course MATH 1001 taught by Professor Moshe during the Spring '09 term at LSU.

### Page1 / 3

Section 3.1 class notes_0 - Section 3.1 Relations and...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online